diff --git a/outlineviewer/src/main/native/cpp/main.cpp b/outlineviewer/src/main/native/cpp/main.cpp
index cf78c9b0af..8d2033834a 100644
--- a/outlineviewer/src/main/native/cpp/main.cpp
+++ b/outlineviewer/src/main/native/cpp/main.cpp
@@ -116,7 +116,8 @@ static void DisplayGui() {
   ImGui::SetNextWindowPos(ImVec2(0, 0));
   int width, height;
   glfwGetWindowSize(gui::GetSystemWindow(), &width, &height);
-  ImGui::SetNextWindowSize(ImVec2(width, height));
+  ImGui::SetNextWindowSize(
+      ImVec2(static_cast<float>(width), static_cast<float>(height)));
 
   ImGui::Begin("Entries", nullptr,
                ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_MenuBar |
diff --git a/wpigui/src/main/native/include/wpigui.h b/wpigui/src/main/native/include/wpigui.h
index ac4ce550dc..a745431825 100644
--- a/wpigui/src/main/native/include/wpigui.h
+++ b/wpigui/src/main/native/include/wpigui.h
@@ -128,7 +128,7 @@ bool AddIcon(const unsigned char* data, int len);
 
 inline bool AddIcon(std::string_view data) {
   return AddIcon(reinterpret_cast<const unsigned char*>(data.data()),
-                 data.size());
+                 static_cast<int>(data.size()));
 }
 
 /**